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154
cent. of fat. Dried humanised milk should contain
as high a percentage of fat as any other dried
milk and it is a pity that the law allows manufacturers
t o employ descriptions such as
"humanised" without disclosing the fact that the
product contains less milk fat than a dried human
milk would.
Both samples of ice cream were found to
contain zinc (0.10 and 0.11 grains per pound
respectively). This is due to the use of galvanised
iron containers for its storage, and when ice cream
is stored, as it frequently is, for periods as long as
three months, care should be taken to see that the
containers are in good condition, or cream scraped
from the sides may be given to children and cause
sickness.
One sample of preserved sausages contained no
preservative. It is possible, but most unlikely,
that a small amount of preservative had been added
originally but that the sulphur dioxide had been
oxidised. Vendors should realise that strictly speaking
such a sample is adulterated, since the purchaser
may justly claim that he expects "preserved" articles
to keep for longer periods than those without preservatives.
A sample submitted as sausages was preserved,
but it was found that the notice to this effect had
been removed from the shop when the inspector made
the purchase. Two samples of meat pie contained
moulds and, whilst they were reported as genuine,
it shows that vigilance is required in the supervision
of cooked meats and meat products.
One sample of beef dripping contained an
excessive amount of free fatty acids (3.8 per
cent.), but the acidity failed to increase in quantity
on keeping, and prosecution was therefore not
recommended. The probable explanation of this
is that the original fat employed in its preparation
was stale and that it had been sterilised and
clarified during manufacture.